/***********************************************************************/
/* Open Visualization Data Explorer                                    */
/* (C) Copyright IBM Corp. 1989,1999                                   */
/* ALL RIGHTS RESERVED                                                 */
/* This code licensed under the                                        */
/*    "IBM PUBLIC LICENSE - Open Visualization Data Explorer"          */
/***********************************************************************/

#include <dxconfig.h>
#include "../base/defines.h"

#ifndef _DrivenDefinition_h
#define _DrivenDefinition_h

#include <Xm/Xm.h>

#include "NodeDefinition.h"
#include "SIAllocatorDictionary.h"

//
// Class name definition:
//
#define ClassDrivenDefinition "DrivenDefinition"

//
// Forward definitions
//
class Parameter;
class ParameterDefinition;
class Node;

//
// DrivenDefinition class definition:
//
class DrivenDefinition : public NodeDefinition
{
 private:
 protected:
  //
  // Protected member data:
  //

  //
  // Driven nodes use AttributeParameters as input parameteters.
  //
  virtual Parameter *newParameter( ParameterDefinition *pd, Node *n,
                                   int index );
  //
  // Mark all outputs as cache once with read-only cache attributes
  // (as per the semantics of data-driven interactors).
  // This helps to force an execution when inputs change that must have
  // their values communicated back to the User Interface.
  //
  void finishDefinition();

 public:
  //
  // Constructor:
  //
  DrivenDefinition()
  {
  }

  //
  // Destructor:
  //
  ~DrivenDefinition()
  {
  }

  virtual boolean isAllowedInMacro()
  {
    return FALSE;
  }

  //
  // Returns a pointer to the class name.
  //
  virtual const char *getClassName()
  {
    return ClassDrivenDefinition;
  }
};

#endif  // _DrivenDefinition_h
